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SUSAN M SULLIVAN FNP
NPI 1679900757
Nurse Practitioner - Adult Health in Ballwin, MO

Active since October 03, 2013PECOS EnrolledAccepts Medicare Assignment
15945 CLAYTON RD STE 120A, BALLWIN, MO 63011(636) 256-5000(636) 256-5043 Get Directions Write a Review

NPPES record last updated: February 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 3, 2020, Jul 31, 2020 (2 updates tracked since 2020).

About Susan M Sullivan Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SUSAN M SULLIVAN FNP (NPI 1679900757) is an individual adult health provider in Ballwin, Missouri, licensed in Missouri (2013039392) and active in the NPI registry since October 2013. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1679900757
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameSUSAN M SULLIVANCredential: FNP
Location Address15945 CLAYTON RD STE 120ABallwin, MO 63011-2490
Mailing Address15945 Clayton Rd Ste 120aBallwin, MO 63011-2490 · (636) 256-5000 · Fax (636) 256-5043
Phone(636) 256-5000
Fax(636) 256-5043
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateOctober 3, 2013
Last NPPES UpdateFebruary 10, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 10, 2026
✔ NPI 1679900757 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in MO · 2013039392
15945 CLAYTON RD STE 120A, Ballwin, MO 63011
Open in Google Maps ↗

Other Names 1

Former Name (1)Susan M O'neil Agpcnp-bc

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Susan M Sullivan Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133358260
PECOS Enrollment IDI20140212000578
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Susan Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Clinic St. Louis Cancer And Breast Institute, LLC
8.9 mi
Surgical Oncology
621 S NEW BALLAS RD STE 260A
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 10 clinicians in this Medicare group
NPI 1891946349 (314) 251-8001

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
195 services178 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
62 services62 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
51 services51 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63011 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 17

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
14 suppliers255 claims256 services$33.11 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
10 suppliers99 claims99 services$78.11 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
10 suppliers102 claims263 services$30.45 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
9 suppliers85 claims398 services$16.66 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
7 suppliers102 claims474 services$12.79 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
10 suppliers162 claims162 services$47.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARY DEANE KITCHURA PA
Physician Assistant
15945 CLAYTON RD STE 120A
BALLWIN, MO 63011
St. Louis County (636) 256-5000
BEVERLY ANN WILHELM-ONEY MD
Surgery
15945 CLAYTON RD STE 120A
BALLWIN, MO 63011
St. Louis County (636) 256-5000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Susan Sullivan's NPI number?

The NPI number for Susan Sullivan is 1679900757. It was assigned to this individual provider in the NPPES registry on October 3, 2013. The provider is also known as Susan M O'neil Agpcnp-Bc.

Where is Susan Sullivan located?

Susan Sullivan practices at 15945 Clayton Rd Ste 120A, Ballwin, MO 63011. The listed phone number is (636) 256-5000.

What is Susan Sullivan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Susan Sullivan enrolled in Medicare?

Yes. Susan Sullivan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Susan Sullivan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Susan Sullivan reassigns Medicare benefits to Mercy Clinic St. Louis Cancer And Breast Institute, LLC (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Susan Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Susan Sullivan accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Susan Sullivan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Susan Sullivan affiliated with any hospitals?

According to CMS data, Susan Sullivan is affiliated with Mercy Hospital St Louis and Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Susan Sullivan was last updated on February 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.